| Official Name: | Qaleh-ye Sefid |
| Native Name: | قلعه سفيد |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | North Khorasan |
| Subdivision Type2: | County |
| Subdivision Name2: | Esfarayen |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Milanlu |
| Population As Of: | 2006 |
| Population Total: | 144 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 37.0975°N 57.6931°W |
Qaleh-ye Sefid (Persian: قلعه سفيد, also Romanized as Qal‘eh-ye Sefīd) is a village in Milanlu Rural District, in the Central District of Esfarayen County, North Khorasan Province, Iran. At the 2006 census, its population was 144, in 31 families. The name means "white castle".